Global Patent Index - EP 2123824 A4

EP 2123824 A4 20121114 - STRETCHABLE SHEET AND METHOD OF PRODUCING THE SAME

Title (en)

STRETCHABLE SHEET AND METHOD OF PRODUCING THE SAME

Title (de)

DEHNBARE FOLIE UND VERFAHREN ZU SEINER HERSTELLUNG

Title (fr)

FEUILLE ÉTIRABLE ET SON PROCÉDÉ DE FABRICATION

Publication

EP 2123824 A4 20121114 (EN)

Application

EP 08738645 A 20080313

Priority

  • JP 2008054574 W 20080313
  • JP 2007070327 A 20070319

Abstract (en)

[origin: EP2123824A1] To provide a sheet excellent in surface appearances, touch, stretch ratio and stretch-back ratio, the sheet is produced by following steps (i) to (iii). (i) the step of producing a sheet by entangling woven or knitted material including a thread composed of a composite fiber such that two kinds or more of polyethylene terephthalate polymers different in intrinsic viscosity are stuck together in a side-by-side type along the fiber length direction and/or of a core-in-sheath type composite fiber such that two kinds or more of polyethylene terephthalate polymers different in intrinsic viscosity form an eccentric core-in-sheath structure, with a fiber capable of converting into ultra fine fibers composed of two kinds or more of polymeric substances different in solubility in solvent, (ii) the step of developing an ultra fine fiber with an average single fiber fineness of 0.001 dtex or more and 0. 5 dtex or less by treating the sheet with a solvent to thereafter provide elastomer having polyurethane as a main component by impregnating and solidifying solvent solution of elastomer having polyurethane as a main component into the sheet, or of providing elastomer having polyurethane as a main component by impregnating and solidifying solvent solution of elastomer having polyurethane as a main component into the sheet to thereafter develop an ultra fine fiber with an average single fiber fineness of 0.001 dtex or more and 0.5 dtex or less by treating the sheet with a solvent, and (iii) the step of rubbing and shrinking the woven or knitted material under the condition of 110°C or more;

IPC 8 full level

D06N 3/14 (2006.01); D01F 8/14 (2006.01); D04H 1/42 (2012.01); D04H 1/4382 (2012.01); D06M 11/00 (2006.01); D06M 13/08 (2006.01); D06M 15/00 (2006.01); D06M 15/333 (2006.01); D06M 15/564 (2006.01); D06M 15/70 (2006.01); D06M 23/00 (2006.01); D06M 101/32 (2006.01)

CPC (source: EP KR US)

B32B 5/26 (2013.01 - EP US); C08G 18/4277 (2013.01 - EP US); C08G 18/44 (2013.01 - EP US); C08G 18/4854 (2013.01 - EP US); C08G 18/664 (2013.01 - EP US); C08G 18/6674 (2013.01 - EP US); C08G 18/7671 (2013.01 - EP US); D01F 8/14 (2013.01 - EP US); D04H 1/43828 (2020.05 - EP US); D04H 1/4383 (2020.05 - EP US); D04H 1/43832 (2020.05 - EP US); D04H 1/43838 (2020.05 - EP US); D04H 1/482 (2013.01 - EP US); D04H 1/488 (2013.01 - EP US); D04H 1/64 (2013.01 - EP US); D06C 21/00 (2013.01 - KR); D06M 14/32 (2013.01 - KR); D06M 15/564 (2013.01 - EP KR US); D06N 3/0002 (2013.01 - EP US); D06N 3/0004 (2013.01 - EP US); D06N 3/0031 (2013.01 - EP US); D06N 3/14 (2013.01 - EP US); Y10T 442/2008 (2015.04 - EP US); Y10T 442/2861 (2015.04 - EP US)

Citation (search report)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

DOCDB simple family (publication)

EP 2123824 A1 20091125; EP 2123824 A4 20121114; EP 2123824 B1 20130612; CN 101611193 A 20091223; CN 101611193 B 20120222; JP 2008261082 A 20081030; JP 4935721 B2 20120523; KR 101361342 B1 20140210; KR 20100015643 A 20100212; US 10745830 B2 20200818; US 11220764 B2 20220111; US 2010105265 A1 20100429; US 2020332443 A1 20201022; WO 2008126610 A1 20081023

DOCDB simple family (application)

EP 08738645 A 20080313; CN 200880004183 A 20080313; JP 2008054574 W 20080313; JP 2008062249 A 20080312; KR 20097021636 A 20080313; US 202016919197 A 20200702; US 53181708 A 20080313